1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6b56ef1ad2c3edbee91c819c387942b9122c18e4a0c8fe80055e1507d346e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2b29329-824e-4c88-8d80-d544ecd16827.json and https://artists.proofprofile.net/proofs/artist/a2b29329-824e-4c88-8d80-d544ecd16827.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
21 Reasons (feat. Ella Henderson) [Toyboy & Robin Remix]
21 Reasons (feat. Ella Henderson) - Toyboy & Robin Remix
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60db9448413e7c3c692914fa76e899cab185f163dd289e5e56c3d793e36f707. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAHS2200649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940da22aed0a3f736598f9181e6ff64bdeee3587b47f07a3c1406e4e4873844f. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAHS2200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869ca17bd2620ecd1e31faa07443e21f8b6fe34bad7514089d6f32d3d113df99. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAHS2201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e82770661d4a3dfeedde20a0ac50a4319f3f59d677430648664abd7627e22ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAHS2200504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61db56c2ac3e45f18d8f81e58690297a62dab9d8bc7ae6e71ac458a8b0c7f4ce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1937196.
Last Time (Change Your Mind) [Toyboy & Robin Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316dddbfe477292fd4443e20f539dc09109df8c3d391e2aeecfca856f7c8dfa9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHAD1700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad20000e089515974e9dba71e2f3c1f30970e6f45cd43b302be24f9484e4a8b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1672439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9ad0d17c864fdb1c107898ace7678fa3b5f3df8b862bd8589eddd2db0246f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21602404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89370fae447276f88270fb445631b246ed82a69520613264b4f4169c743819d9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21601786.
Borrowed (feat. Gyptian & L Marshall) [Kideko Remix]
Save Me Now (feat. Sam Wills) - Felon Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e53b6ceab99ac4330b06417dae82af18429d47ffd9b4c5105bfe88078c3b742. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21503097.
Losing My Love (feat. Rothwell) - Tommy Vercetti Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c16454a4a90debde4e9a02f5e9045bf2ef71e10b64f68e04005cdfab53b74. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21503098.
Like a Shadow (feat. Robyn Sherwell) - Kattison Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357ffb6615ba7d2e9b3ff2bca623c23f89a997a7934be154c1ff4d6936a1e139. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21503099.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Save Me Now (feat. Sam Wills) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe789adf3f0da18a9e92f2606afc51a3905a7c1fc11f65555364b160dc22639f7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21501394.
Losing My Love (feat. Rothwell) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea1ae3d2c103351995b8d5dceb689b640f3404b355714af1da055743c0658d1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21501395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2ff49d69cda4697a96121765b24844d13c70c42ad902f68560f011ffc1d008. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21501396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dd40b5f14061c93441dea5e541956b62f16bc81267fdd02df310a73182feb2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSCL1420001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9b6cae10c1140604988391214b7d2d9301c9ecfe2d910a0bed845daf8f2fe7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSCL1420002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01ec5548e61b2c223f4c055e7a4df3e69c01047b2b188cbdaad0fd65943cdb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4666729e2a9308d00445c62aba925dd67bb2313138e027f66fdffbe1eb0be8d7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71400508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b3fa423d3273089b0b9080a0e4383f61d919b8db861f9384e5dd59add98e6b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a70b00313a05d005a3756886c4f396e95cabac3db15e1803cdf925d721343d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71308996.